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A prototype router for the massively parallel computer RWC-1

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6 Author(s)
Yokota, T. ; Real World Comput. Partnership, Tsukuba Res. Center, Ibaraki, Japan ; Matsuoka, H. ; Okamoto, K. ; Hirono, H.
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The RWC-1 is a massively parallel computer based on a multi-threaded architecture. This architecture requires extremely high communication performance with reasonable hardware cost. ln this paper, we first introduce a new class of direct interconnection networks called MDCE (Multidimensional Directed Cycles Ensemble extension). MDCE has many desirable features for RWC-1 including small degree, low latency, and high throughput. MDCE is thus adopted for a RWC-1 network. We have designed an MDCE router and fabricated an experimental VLSI chip. We explain the design details in this paper. The chip employs operating system support features as well as communication functions, and enables advanced resource management, A prototype chip with about 125,000 gates has been fabricated using 0.6-μm CMOS gate array technology. Its clock runs at 50 MHz and a transmission rate of 300 M bytes per second per communication port is achieved

Published in:

Computer Design: VLSI in Computers and Processors, 1995. ICCD '95. Proceedings., 1995 IEEE International Conference on

Date of Conference:

2-4 Oct 1995